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Dear Prof Scott

Is it possible to design and Construct household letters box with mechanical combination Lock?.

Thanks

Prashant

Yes, and we have one. The mailbox is right out in front of our house. It is a box that also has mailboxes for around a dozen other houses in the neighborhood. It is opened with keys that the post office supplies.

Now if you want a combination lock, you would have to talk to the post office, for only they are allowed to do any major alterations to the mail box. Now most mail boxes can have a master lock where the postman just inserts a key to open the box, but for a small self opening door, whatever type of lock can be entered if the post office says it's OK.

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Comment | Dear Prof Scott Thanks. Thanks & Regards, Prashant S Akerkar |

I can answer almost anything that is sent in. If I can't, I'll let you know, but I don't expect that to happen much.

I have known about number theory since the mid 80's. I have answered over 250 questions on Number Theory with this software. Altogether, I have answered over 8,500 questions in mathematics.**Publications**

You're looking at it ... I've answered over 8,500 quesitons in mathematics right here.
**Education/Credentials**

My credentials are an MS in Mathematics at Oregon State in 1986;
I received a BS in Mathematics at the same place in 1984.**Awards and Honors**

I graduated with honors in Mathematics when getting my BS degree and my MS degree.
**Past/Present Clients**

I have assisted many students in mathematics at OSU.
Perhaps I have assisted one of you're friends in math on a computer somewhere else,
but you don't even know... That would be late last night, perhaps with thousands of miles between us ...
Then again, if you're in Washington, so am I ...